हिंदी

In the LCR series circuit, what is the condition for current resonance?

Advertisements
Advertisements

प्रश्न

In the LCR series circuit, what is the condition for current resonance? 

टिप्पणी लिखिए
Advertisements

उत्तर

When the frequency of the applied e.m.f source is adjusted so that at a particular frequency XL = XC then Z = R. Thus the circuit behaves like a purely resistive circuit. The impedance of the circuit is minimum and the current is maximum. The current and e.m.f of the source are in phase. 

shaalaa.com
  क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
अध्याय 13: AC Circuits - Very Short Answer

APPEARS IN

संबंधित प्रश्न

State any one characteristic of a parallel LC AC resonance circuit.


State any two characteristics of a series LCR AC resonance circuit.


Obtain the expression for the resonant frequency of the LCR series circuit and explain electrical resonance in an LCR series circuit.


A parallel plate air condenser of capacity 10 µF is charged to a potential of 1000 V. The energy of the condenser is ______


In series resonance, LCR circuit, below the resonant frequency, the circuit is ____________.


An A.C. voltage of r.m.s. value 0.1 V is applied to an LCR series circuit in which L = 100 µH and C = 9 x 10-8 F and R = 2 `Omega`. The resonant frequency will be ____________.


If the potential difference across the inductor (9 mH) is same as that across the condenser (10 µF) in a series R-L-C circuit, then the frequency of the applied e.m.f. is nearly ____________.


In the given electrical circuit, which one of the following equations is a correct equation?


In parallel resonance, the current will be minimum, when ____________.


In a resonance tube, first and second resonance positions occur respectively at 28 cm and 88 cm. If the frequency of the fork is 300 Hz, then the speed of sound is ____________.


In LCR circuit, the capacitance is changed from C to 4C. For some resonant frequency, the inductance should be changed from L to ____________.


At what frequency (approximate) will the inductive reactance of 4 H inductance be equal to the capacitive reactance of 4 µF capacitance?


In rejector circuit, above resonant frequency the circuit is ____________.


In series resonant circuit, at resonance, ____________.


A coil of 16 mH and a capacitor of 10 µF are in series with an A.C source along with 5 `Omega` resistances. If inductive reactance is equal to capacitive reactance, then the angular frequency (in rad/s) of source is ____________.


The resonant frequency of a series LCR circuit is 'f'. The circuit is now connected to the sinusoidally alternating e.m.f of frequency '2f'. The new reactance X'L and X'C are related as ____________.


An a.c. source of variable frequency 'f' is connected to an LCR series circuit. Which one of the graphs represent the variation of current 'I' in the circuit with frequency 'f'?


The LCR series and parallel resonant circuits are respectively called as ____________.


In LC parallel resonance circuit, choose the correct statement.


What is an acceptor circuit?


A coil of resistance 5 Ω and self inductance 0.2 H is connected in series with variable capacitor across a 30 V(rms), 50 Hz supply. (i) At what capacitance resonance occur? (ii) Find the corresponding current.


What is a rejector circuit?


What are the Uses of rejector circuit?


In an L-C-R series resonant circuit, the angular frequency at resonance is ‘ω’. When the inductance of inductance is made twice and capacitance of the capacitor is made four times, the angular frequency at resonance is ‘ω₁’. The ratio of ω: ω₁ is


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×